Really good on music quality and some issues on wire..
Really good sound quality headset for its price. Neutral sound and details are super. The wire is not of good quality. Easily prone to damage. Need to handle this headset more...

Never been so easy to become an Audiophile!.
Hail the new king RE-400! Delivering unprecedented sound quality at this price point, HiFiMan's RE-400 is a premium quality, high-performance In-Ear Monitor (IEM) that sets the standard for others to more...

Raising the bar for others to follow, the HiFiMAN RE-400 Waterline is a superior quality, high-performance In-Ear Monitor (IEM) earphones. Featuring improved ergonomics for a comfortable and excellent fit, these earphones deliver the clear sounds for your listening pleasure for hours without causing tiredness.

Manufactured from premium materials such as Titanium Diaphragm, Neodymium magnet, and 50-inch-long OFC Copper cabling, your music is conveyed in its natural state without any alteration. The long wires can either drop down or coil back over your ears.

The HiFiMAN RE-400 with its custom 8.5MM drivers delivers the absolute best-in-class audio performance, and the earphones are stylish with black body and silver accents. The lightweight and portable design make this IEM highly convenient.

The HiFiMAN RE400 comes in two distinctive alternatives, the HiFiMAN RE400A are earphones with a microphone for Android devices delivering the best quality music while the RE400I has been manufactured to be used especially for iPhone / iPad / iPod or other Apple devices with volume control.

Value (10/10) - The latest iteration of the balanced-and-accurate dynamic-driver earphone from HiFiMan, the RE-400 offers an audible tuning change from the old RE0 and RE-ZERO models. It produces slightly weightier bass, a more well-rounded presentation, and smooth, forgiving treble while still offering accuracy on a level very rarely found at or near its price point.

Additional improvements over the previous-gen RE-ZERO include a more robust construction and better noise isolation, mostly due to the more compact, deep-sealing form factor. The RE-400 also boasts much nicer packaging, though there is still a disappointing dearth of accessories. The no-frills approach is fine by me - the RE-400, like its predecessors, is a listener's IEM. All in all, adding a hint of warmth to an otherwise neutral sound should let RE-400 appeal to the casual listener better than the models it replaces while holding very close to the HiFiMan sound many—myself included—have come to love.